Since summer/fall, rumors have persisted that Arnold Schwarzeneggar will appear in Terminator Salvation in some form. Fan site The Arnold Fans (via moviehole) recently spoke with the governor himself about these possibilities. When asked about whether or not he would appear in T4, the site had this to say:

Governor Arnold, perhaps under restraints by McG and the film studio, answers only with the body language and a smile of “You never know.” Should we take that as a yes? The tease was promising but it’s too soon to get an official answer.

This non-denial seems to corroborate previous stories about how McG is trying to use technology to digitally graft Arnold’s face onto the T800 in the film.

I’m typically not the type of person that sees much value in these sorts of cameos. I’m a Trek fan and although it warmed my heart that Leonard Nimoy would be making in appearance in JJ Abram’s new film, I wasn’t terribly elated about it. I think that when you’re taking a series in a whole new direction, you might as well focus on new and exciting story/characters, rather than being tied to the old.

That being said, I would actually push for an Arnold appearance in the new Terminator film. The Terminator is one of the films that made Schwarzeneggar’s career, and it’s what he became synonymous with in the 1990s. It feels like for the huge directional shift they are taking for this franchise, a Schwarzennegar cameo would help to tie everything together. However, if the technology they are trying to use isn’t completely seamless (and according to reports, it might not be there yet), it has the potential to be something that dramatically detracts from the film, rather than adds to it.